The World
Record for the Shortest Venomous Snake

The namaqua or spotted
dwarf adder (Bitis schneideri), which occurs mainly in coastal
areas around the mouth of the Orange River, Namibia, has an average length
of around 18-24cm (7-9.5in). It occasionally bites people, and although
its venom is mildly toxic and causes local swelling and pain, it is not
serious and there have been no recorded fatalities. Mainly nocturnal,
the namaqua dwarf adder eats small geckos and frogs.